Videonystagmography to assess blinking.

Videonystagmography to assess blinking. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Videonystagmography to assess blinking. Abstract Text:

Guillaume Casse,Jean-Pierre Sauvage,Jean-Paul Adenis,Pierre-Yves Robert,

BACKGROUND: In order to measure blinking, we developped a dynamic device consisting of a CCD camera connected to a videonystagmography machine. We developed an artificial pupil that allowed the camera to track movements of the upper eyelid. METHODS: Blinking parameters were measured in eight healthy volunteers, studying spontaneous blinking (SB) and voluntary blinking (VB) responses. Closing time, opening time, closing speed, vertical amplitude, horizontal amplitude and frequency of spontaneous blinking were recorded. RESULTS: In SB, opening time (0.21 +/- 0.04 s) was significantly longer than closing time (0.10 +/- 0.02 s) (p < 0.0001). Mean closing speed was 87 +/- 26 m/s in SB and 168 +/- 59 m/s in VB. Mean vertical amplitude was 9.1 +/- 2.2 mm. Mean vertical amplitude was lower in SB (9.1 +/- 2.2 mm) than in VB (12.3 +/- 1.9 mm) (p < 0.001). Mean horizontal amplitude was also lower in SB (2.7 +/- 0.9 mm) than in VB (3.8 +/- 0.9 mm) (p < 0.05). Frequency of SB was 18.4 +/- 3.4 per minute. CONCLUSIONS: Computer-assisted video acquisition provides real-time measurement of eyeblink dynamics. On healthy volunteers, this method enables accurate measurement of opening and closing responses as well as associated horizontal movement, and enables differentiating spontaneous and voluntary blinking.

Videonystagmography to assess blinking. Publishing Authors By Initials

G Casse,JP Sauvage,JP Adenis,PY Robert,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Videonystagmography to assess blinking. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Graefe's archive for clinical and experimental oph

VOLUME: 245

Page Numbers: 1789-96

Journal Abbreviation: Graefes Arch. Clin. Exp. Ophth

ISSN: 0721-832X

DAY: 28

MONTH: 06

YEAR: 2007

Videonystagmography to assess blinking. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8205248

Videonystagmography to assess blinking. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Videonystagmography to assess blinking. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Videonystagmography to assess blinking.

AFFILIATION: Department of Ophthalmology, CHU Dupuytren, 2 Av Martin Luther King, 87042, Limoges Cedex, France, pierre-yves.robert@unilim.fr.

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Graefes Arch Clin Exp Ophthalm

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Videonystagmography to assess blinking Related Publications

• A 10-year prospective surveillance of Mycobacterium tuberculosis drug resistance in France 1995-2004.
• Banking on it: public policy and the ethics of stem cell research and development.
• Characterization of primary and memory CD8 T-cell responses against ranavirus (FV3) in Xenopus laevis.
• Consistency of Neuropsychiatric Syndromes across Dementias: Results from the European Alzheimer Disease Consortium. Part II.
• Effect of different forms of methionine on lactational performance of dairy cows.
• Emergence of Candida albicans fungemia during voriconazole therapy.
• Endotoxin tolerance enhances interleukin-10 renal expression and decreases ischemia-reperfusion renal injury in rats.
• Frequency-sweep generation by resonant self-injection locking.
• In vivo study of T-cell responses to skin alloantigens in Xenopus using a novel whole-mount immunohistology method.
• Involvement of nonclassical MHC class Ib molecules in heat shock protein-mediated anti-tumor responses.
• Localization and differential expression of activation-induced cytidine deaminase in the amphibian Xenopus upon antigen stimulation and during early development.
• Neuropsychiatric syndromes in dementia. Results from the European Alzheimer disease consortium: part I.
• Peritoneal changes after exposure to sterile solutions by catheter.
• Primary intrapulmonary thymoma: a systematic review.
• Prussian Blue Analogue CsFe[Cr(CN)(6)] as a Matrix for the Fe(II) Spin-Crossover.
• Sclerosing epithelioid fibrosarcoma of the cecum: a radiation-associated tumor in a previously unreported site.
• Short- and long-term outcomes of heatstroke following the 2003 heat wave in Lyon, France.
• Simple, stable, and compact multiple-reflection optical cell for very long optical paths.
• Striatal dopamine transporter levels correlate with apathy in neurodegenerative diseases A SPECT study with partial volume effect correction.
• The malignant colon polyp: diagnosis and therapeutic recommendations.
• Ultrastructure of a spermatid transport system in the mature proglottids of experimental Taenia crassiceps (WFU strain).
• Videonystagmography to assess blinking.
• What Do We Measure with Various Techniques When Assessing IOP?
• [Baldwin-Mori's method for artificial vagina; critical discussion of various plastic methods.]
• [Demonstration of the cytotoxic effect of Advanced glycation Endproducts (AGE-s).]
• [Not Available.]
• [Phlebotomine sandflies from Madagascar (Diptera: Psychodidae). V--description of Sergentomyia majungaensis n. sp]
• [The Maillard reaction: physiopathological role and pharmacological approach.]
• [What is a targeted therapy? The view of the biologist]
• [What's new in fundamental research: cartilage]